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National Stock Number:
1240-00-829-7374
Federal Supply Class:
1240
National Item Identification Number:
008297374
Description:
RETAINER,OPTICAL ELEMENT
Detail:
A cylindrical, externally threaded item having a centrally located hole specifically designed to retain by means of either a raised box (shoulder), or counterbore, countersink, or a similar shaped recess, an optical element such as a lens, reticle, cell, and the like, in optical assemblies. It must have drilled holes or slots to facilitate assembly and disassembly. For items which house the optical element(s), and form the internal or central portions of an optical system, see CELL, OPTICAL ELEMENT. Excludes RING, EXTERNALLY THREADED.
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Manufacturer Information:
| 10542159 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 | | DRIVE TYPE | SLOTTED | | DEPTH | 0.062 INCHES NOMINAL | | FLANGE THREAD SIZE | 0.688 IN.-32 UN-2A | | FSC APPLICATION DATA | PERISCOPE XM44 | | HOLE OR SLOT QUANTITY | 2 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.281 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6, T351 FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2024 | | SETSCREW NOTCH | NOT PROVIDED | | SHOULDER DIAMETER | 0.560 INCHES NOMINAL | | SHOULDER LENGTH | 0.141 INCHES NOMINAL | | STYLE DESIGNATOR | SHOULDERED | | WIDTH | 0.047 INCHES NOMINAL | | SURFACE TREATMENT | ANODIZE | | TAPER ANGLE IN DEG | 10.0 | | TAPERED HOLE MINOR DIAMETER | 0.480 INCHES MINIMUM AND 0.490 INCHES MAXIMUM |
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